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Mammals Vs. Dinos- Dilong: Feathered Hunters
Mammals Vs. Dinos- Dilong: Feathered Hunters
Published: 2008/10/16
Channel: Science Channel
【Velociraptor ・Dilong 】
【Velociraptor ・Dilong 】
Published: 2015/09/24
Channel: Goo Soo
Review 68: Carnegie Dilong
Review 68: Carnegie Dilong
Published: 2015/07/02
Channel: Matthew The Dinosaur King
How to Draw a Dilong
How to Draw a Dilong
Published: 2012/01/28
Channel: www123peppy
DIY Dilong Dinosaur 5th Grade Project Using a Green Screen
DIY Dilong Dinosaur 5th Grade Project Using a Green Screen
Published: 2016/09/26
Channel: Tony Kennerly
Spore: Dilong
Spore: Dilong
Published: 2009/08/09
Channel: dadltondmd
Mammals Vs. Dinos- Dinosaur Hunting
Mammals Vs. Dinos- Dinosaur Hunting
Published: 2008/10/15
Channel: Science Channel
Mammals Vs. Dinos- Allosaurus vs. Stegosaurus
Mammals Vs. Dinos- Allosaurus vs. Stegosaurus
Published: 2008/10/16
Channel: Science Channel
Feather dinosaurs attack the prey of Dilong CG
Feather dinosaurs attack the prey of Dilong CG
Published: 2017/10/15
Channel: にばんめしゃちょう
Feather dinosaur Dilong in the forest CG
Feather dinosaur Dilong in the forest CG
Published: 2017/10/15
Channel: にばんめしゃちょう
Mammals Vs. Dinos- Coelophysis Domination
Mammals Vs. Dinos- Coelophysis Domination
Published: 2008/10/15
Channel: Science Channel
Dilong paradoxus
Dilong paradoxus
Published: 2015/07/30
Channel: Wiz Science™
Shapes Like Dinosaurs - Dilong Paradoxus
Shapes Like Dinosaurs - Dilong Paradoxus
Published: 2015/05/23
Channel: Tappy Danski
Over 1 Million Years Old Massive Dinosaur Tissues Discovered In China! SHOCKING!
Over 1 Million Years Old Massive Dinosaur Tissues Discovered In China! SHOCKING!
Published: 2017/10/25
Channel: Mystery Truth
Paleo File || Dilong - "The Emperor Dragon"
Paleo File || Dilong - "The Emperor Dragon"
Published: 2017/09/08
Channel: The Expeditioner's Discovery Guild
Dinosaur Park Texas Tour & Dinosaur Identification (HD)
Dinosaur Park Texas Tour & Dinosaur Identification (HD)
Published: 2017/09/08
Channel: Cool Toys & Daytrips For Kids
Dinosaurs vs Mammals
Dinosaurs vs Mammals
Published: 2015/12/27
Channel: Epic History
dinosaur review 17 safari ltd 2018 ankylosaurus
dinosaur review 17 safari ltd 2018 ankylosaurus
Published: 2017/11/22
Channel: alex the sauropod titan
Dinosaur Of The Day Episode 4! "Dilong" HARDCORE EDITION!!
Dinosaur Of The Day Episode 4! "Dilong" HARDCORE EDITION!!
Published: 2012/08/29
Channel: DinosaurOfTheDay
Shapes Like Dinosaurs - Dilong Paradoxus - Jurassic Geometry
Shapes Like Dinosaurs - Dilong Paradoxus - Jurassic Geometry
Published: 2009/11/22
Channel: vans4menu
JPOG mon nouveau skin :dilong
JPOG mon nouveau skin :dilong
Published: 2013/10/12
Channel: Cucchiara Bryan
Guyllian
Guyllian's Toy Reviews - Episode 6: Safari Ltd. - Carnegie Dinosaurs - Dilong (No. 421301)
Published: 2014/05/03
Channel: GvRToys
PAR024 Carnegie Collection Dilong.
PAR024 Carnegie Collection Dilong.
Published: 2016/06/25
Channel: Otakusauridae Reviews
Tribute to Guanlong/Dilong
Tribute to Guanlong/Dilong
Published: 2010/12/10
Channel: ReDemption Gaming
The Facts About Dinosaurs & Feathers
The Facts About Dinosaurs & Feathers
Published: 2017/11/27
Channel: PBS Eons
OBM - Dinosaur - Dilong
OBM - Dinosaur - Dilong
Published: 2016/12/30
Channel: Our Best Moments
Dinosaurs Unearthed - Dino Death Trap
Dinosaurs Unearthed - Dino Death Trap
Published: 2013/04/10
Channel: ShopDVDHAY
Tyrannosaurus Rex VS Giganotosaurus - War Of The Super Families
Tyrannosaurus Rex VS Giganotosaurus - War Of The Super Families
Published: 2009/05/29
Channel: Dylan Loveday
Schleich 2018 Models Thoughts and Opinions
Schleich 2018 Models Thoughts and Opinions
Published: 2017/08/25
Channel: Matthew The Dinosaur King
⭐JURRASIC QUEST DINOSAURS (LIFESIZE WALKING DINOS) 👀 DINOSAURS ALIVE!  RIDE HUGE DINOSAURS - ROAR 👈
⭐JURRASIC QUEST DINOSAURS (LIFESIZE WALKING DINOS) 👀 DINOSAURS ALIVE! RIDE HUGE DINOSAURS - ROAR 👈
Published: 2017/12/05
Channel: New Day Videos
dilong paradoxus - Dinosaur Names 🔊☄
dilong paradoxus - Dinosaur Names 🔊☄
Published: 2017/12/01
Channel: See Hear Say Learn
NOVA | NOVA Short | A Dinosaur is Born
NOVA | NOVA Short | A Dinosaur is Born
Published: 2008/02/25
Channel: NOVA PBS Official
DILONG
DILONG
Published: 2007/07/31
Channel: alansublime
Yutyrannus: Dinosaur of the Day
Yutyrannus: Dinosaur of the Day
Published: 2017/05/10
Channel: I Know Dino
Are Birds Really Dinosaurs?
Are Birds Really Dinosaurs?
Published: 2015/04/24
Channel: The Dinosaur Show
Dinosaur feathers in amber
Dinosaur feathers in amber
Published: 2016/12/08
Channel: SciNews
Dinosaur to bird evolution 1of5
Dinosaur to bird evolution 1of5
Published: 2008/11/10
Channel: djarm67
Learning Learn Asian Dinosaurs  - Wild Animals 🌋Schleich Volcano erupts - What’s in the Box?
Learning Learn Asian Dinosaurs - Wild Animals 🌋Schleich Volcano erupts - What’s in the Box?
Published: 2017/01/28
Channel: SuperFunReviews
Safari LTD Wild Safari Dinosaur and Prehistoric Life Plesiosuchus
Safari LTD Wild Safari Dinosaur and Prehistoric Life Plesiosuchus
Published: 2015/10/23
Channel: Studio Avalanche
Strange Ancient Mammal Had Dinosaur-Like Feature, According to New Study
Strange Ancient Mammal Had Dinosaur-Like Feature, According to New Study
Published: 2016/02/08
Channel: United News International
PaleoFAIL || # 2: Flying and Swimming Dinosaurs
PaleoFAIL || # 2: Flying and Swimming Dinosaurs
Published: 2017/11/27
Channel: The Expeditioner's Discovery Guild
Dino toy review: Guanlong and Dilong
Dino toy review: Guanlong and Dilong
Published: 2016/02/28
Channel: Devil Games5
Oldest Feathered Dinosaur Fossil Found
Oldest Feathered Dinosaur Fossil Found
Published: 2013/05/31
Channel: GeoBeats News
Killer dinosaurs on human hunt
Killer dinosaurs on human hunt
Published: 2013/03/15
Channel: The Ad Show
YouTube - Dinosaur to bird evolution 2 of 5
YouTube - Dinosaur to bird evolution 2 of 5
Published: 2010/07/02
Channel: mrphoo67
PaleoFAIL || # 3: All Dinosaurs Lived at the Same Time
PaleoFAIL || # 3: All Dinosaurs Lived at the Same Time
Published: 2017/12/02
Channel: The Expeditioner's Discovery Guild
Dinosaur to bird evolution 3 of 5
Dinosaur to bird evolution 3 of 5
Published: 2010/07/02
Channel: mrphoo67
Dinosaur escape
Dinosaur escape
Published: 2013/03/30
Channel: Ryan Eckard
Safari LTD Dinosaurs 2
Safari LTD Dinosaurs 2
Published: 2015/04/10
Channel: Studio Avalanche
Dinosaur to bird evolution 5of5
Dinosaur to bird evolution 5of5
Published: 2008/11/10
Channel: djarm67
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WIKIPEDIA ARTICLE

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Dilong
Temporal range: Early Cretaceous, 126 Ma
Dilong.jpg
Original fossil specimen
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Theropoda
Superfamily: Tyrannosauroidea
Genus: Dilong
Xu et al., 2004
Species: D. paradoxus
Binomial name
Dilong paradoxus
Xu et al., 2004

Dilong (帝龍, which means 'emperor dragon') is a genus of basal tyrannosauroid dinosaur.[1] The only species is Dilong paradoxus. It is from the Lower Cretaceous Yixian Formation near Lujiatun, Beipiao, in the western Liaoning province of China. It lived about 126 million years ago.[2]

Discovery[edit]

Dilong was described by Xu Xing and colleagues in 2004.[3] The name is derived from the Chinese meaning 'emperor' and 龙 / 龍 lóng meaning 'dragon'. "Di", "emperor", refers to the relationship of this animal to Tyrannosaurus rex, the "king" tyrannosaurid. "Long" is used to name Chinese dinosaurs in much the same way that the Latin -saur(us) is in the West. The specific name, paradoxus, is a Latinisation of the Ancient Greek παράδοξον meaning 'against received wisdom'.

Description[edit]

Size comparison between Dilong and a human.

The type specimen is IVPP 14243 (Institute of Vertebrate Paleontology and Paleoanthropology in Beijing), a nearly complete, semi-articulated, skull and skeleton. Referred material includes IVPP 1242, a nearly complete skull and presacral vertebrae, TNP01109 (Tianjin Museum of Natural History), a partial skull, and IVPP V11579, another skull which may belong to D. paradoxus, or to a related species. The type specimen of Dilong was about 1.6 m (5.2 ft) in length, but it is thought to be a juvenile and may have been over 2 m (6.6 ft) long when fully grown.

Feathers[edit]

Dilong paradoxus had a covering of simple feathers or protofeathers. The feathers were seen in fossilized skin impressions from near the jaw and tail. They are not identical to modern bird feathers, lacking a central shaft and most likely used for warmth, since they could not have enabled flight. Adult tyrannosaurs, found in Alberta and Mongolia have skin impressions which appear to show the pebbly scales typical of other dinosaurs. Xu et al. (2004) speculated that the tyrannosauroids may have had different skin coverings on different parts of their bodies - perhaps mixing scales and feathers. They also speculated that feathers may correlate negatively with body size - that juveniles may have been feathered, then shed the feathers and expressed only scales as the animal became larger and no longer needed insulation to stay warm.

Classification[edit]

Life restoration.
Reconstructed skeleton

When Dilong was first described, it was considered one of the earliest and most primitive members of Tyrannosauroidea, the group that includes the later, larger tyrannosaurids such as Tyrannosaurus rex. At least one later study, by Turner and colleagues in 2007, reanalyzed the relationships of coelurosaurian dinosaurs, including Dilong, and found that it was not a tyrannosauroid. Rather, they placed Dilong two steps above the tyrannosauroids in their phylogeny; more advanced than Coelurus, but more primitive than the Compsognathidae.[4] However, other studies continued to find Dilong as a tyrannosauroid, and some (such as Carr & Williamson 2010) found Dilong to fall within Tyrannosauroidea, not among the more advanced coelurosaurs.[5]

Below is a cladogram containing most tyrannosauroids by Loewen et al. in 2013.[6]

Tyrannosauroidea
Proceratosauridae


Proceratosaurus bradleyi



Kileskus aristotocus



Guanlong wucaii





Sinotyrannus kazuoensis




Juratyrant langhami



Stokesosaurus clevelandi







Dilong paradoxus




Eotyrannus lengi




Bagaraatan ostromi




Raptorex kriegsteini




Dryptosaurus aquilunguis





Alectrosaurus olseni



Xiongguanlong baimoensis





Appalachiosaurus montgomeriensis





Alioramus altai



Alioramus remotus




Tyrannosauridae











In a 2014 study, Dilong was found to be a proceratosaurid.[1] However, in an analysis by Brusatte et al. in 2016, both parsimony and Bayesian phylogenetic analyses placed Dilong outside of Proceratosauridae, as a slightly more advanced tyrannosauroid.[7]

See also[edit]

References[edit]

  1. ^ a b Juan D. Porfiri; Fernando E. Novas; Jorge O. Calvo; Federico L. Agnolín; Martín D. Ezcurra; Ignacio A. Cerda (2014). "Juvenile specimen of Megaraptor (Dinosauria, Theropoda) sheds light about tyrannosauroid radiation". Cretaceous Research. 51: 35–55. doi:10.1016/j.cretres.2014.04.007. 
  2. ^ Chang, S.-C.; Gao, K.-Q.; Zhou, Z.-F.; Jourdan, F. (2017). "New chronostratigraphic constraints on the Yixian Formation with implications for the Jehol Biota". Palaeogeography, Palaeoclimatology, Palaeoecology. 487: 399–406. doi:10.1016/j.palaeo.2017.09.026. 
  3. ^ Xu, X.; Norell, M. A.; Kuang, X.; Wang, X.; Zhao, Q.; Jia, C. (2004). "Basal tyrannosauroids from China and evidence for protofeathers in tyrannosauroids" (PDF). Nature. 431 (7009): 680–684. doi:10.1038/nature02855. PMID 15470426. 
  4. ^ Turner, A.H., Pol, D., Clarke, J.A., Erickson, G.M., and Norell, M. (2007). "Supporting online material for: A basal dromaeosaurid and size evolution preceding avian flight". Science, 317: 1378-1381. doi:10.1126/science.1144066 (supplement)
  5. ^ Carr T.D.; Williamson T.E. (2010). "Bistahieversor sealeyi, gen. et sp. nov., a new tyrannosauroid from New Mexico and the origin of deep snouts in Tyrannosauroidea". Journal of Vertebrate Paleontology. 30 (1): 1–16. doi:10.1080/02724630903413032. 
  6. ^ Loewen, M.A.; Irmis, R.B.; Sertich, J.J.W.; Currie, P. J.; Sampson, S. D. (2013). Evans, David C, ed. "Tyrant Dinosaur Evolution Tracks the Rise and Fall of Late Cretaceous Oceans". PLoS ONE. 8 (11): e79420. doi:10.1371/journal.pone.0079420. PMC 3819173Freely accessible. PMID 24223179. 
  7. ^ Brusatte, Stephen L.; Carr, Thomas D. (2016-02-02). "The phylogeny and evolutionary history of tyrannosauroid dinosaurs". Scientific Reports. 6 (1). doi:10.1038/srep20252. ISSN 2045-2322. 

External links[edit]

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